Search found 2597 matches

by RobC
Sun May 26, 2019 12:37 pm
Forum: hardware
Topic: MIDI->STM32->Beeb->Music 5000
Replies: 12
Views: 316

Re: MIDI->STM32->Beeb->Music 5000

This is fantastic - will definitely be building one when I've got a bit more time.

Many thanks Daniel :D
by RobC
Fri May 24, 2019 8:15 pm
Forum: software: new games
Topic: Doom?
Replies: 122
Views: 5275

Re: Doom?

is there much soldering involved with the VideoNuLA? You usually have to desolder the original ULA on a Master but, if you don't fancy doing it yourself, I offer a free desoldering service. You just have to post the PCB to me and cover return postage. Alternatively, if you're anywhere near Newport,...
by RobC
Tue May 21, 2019 6:16 pm
Forum: hardware
Topic: B+ DFS & ADFS versions for PAGE E00
Replies: 2
Views: 175

Re: B+ DFS & ADFS versions for PAGE E00

I see that some people have both DFS and ADFS installed on their machines. Do both of them sit happily together and what happens to PAGE? For ADFS131EOO, how do you set this up to work correctly? Does it only work loaded into SWRAM, or can you put it in an EPROM and it will use SWRAM for its work s...
by RobC
Tue May 21, 2019 5:36 pm
Forum: software: new games
Topic: Doom?
Replies: 122
Views: 5275

Re: Doom?

CraigsBar wrote:
Tue May 21, 2019 1:26 pm
Yeah, I have a datacentre fitted already. Will be ordering a VideoNuLA on payday! Then doom on a beeb, yay!
Great - do contact me on here rather than buying one on eBay as it'll be cheaper...
by RobC
Mon May 20, 2019 9:05 pm
Forum: software: new games
Topic: Doom?
Replies: 122
Views: 5275

Re: Doom?

Doom should work with BeebLink, I'd hope - there's a somewhat arbitrary 16 MByte file size, mainly so *INFO output can print the size in 6 digits, but I think the Doom WADs are smaller than that. That sounds good - the WADs I've been using for testing are about 4MB. If Doom uses OSBGET to read the ...
by RobC
Mon May 20, 2019 5:24 pm
Forum: software: new games
Topic: Doom?
Replies: 122
Views: 5275

Re: Doom?

Do you reckon it will work with Tom's Beeblink via Chris's TubeSerial adapter? I've booted Elite through that off a Pi Zero. started up really quickly. I know there's no 31 file limit but not sure about capacity. Unfotunately, I've no idea as I've never used one. The filing system needs to be able ...
by RobC
Sun May 19, 2019 4:04 pm
Forum: software: new games
Topic: Doom?
Replies: 122
Views: 5275

Re: Doom?

wow super amazing =D> , now i will have to purchase a video nula. from where the game files can be run ?, you need a datacentre to run it or they can be in the mini sd interface also. Thanks. I haven't released it yet as I've still got to fix a few bugs and get sound working. Unfortunately, real li...
by RobC
Fri May 17, 2019 7:05 am
Forum: hardware
Topic: CompactFlash card on Castle A30x0 IDE Mini Podule
Replies: 23
Views: 478

Re: CompactFlash card on Castle A30x0 IDE Mini Podule

Doesn't the Castle minipodule just mimic the Acorn's motherboard IDE interface and that's why it can use ADFS rather than needing IDEFS etc. ?

I'd assumed that's why Wizzo works with the A4, A5000, A4000, A3020 and the Castle podule.
by RobC
Thu May 16, 2019 10:07 am
Forum: hardware
Topic: CompactFlash card on Castle A30x0 IDE Mini Podule
Replies: 23
Views: 478

Re: CompactFlash card on Castle A30x0 IDE Mini Podule

Just one more thing that I've just remembered. I got partial success with some cards - all looked to be well until I tired loading a large file and then I got problems. ISTR Pacmania crashing during loading as one of the failures.
by RobC
Thu May 16, 2019 6:56 am
Forum: hardware
Topic: CompactFlash card on Castle A30x0 IDE Mini Podule
Replies: 23
Views: 478

Re: CompactFlash card on Castle A30x0 IDE Mini Podule

Mine only worked when using two cards in a dual CF adapter like this: https://usb.brando.com/prod_img/zoom/UCABL008700_01_L.jpg I think I only got it working with two Sandisk 256MB cards (the standard blue and red ones) as it wasn't happy with anything else I tired. I haven't tried it but I very muc...
by RobC
Thu May 16, 2019 6:51 am
Forum: software: new games
Topic: Doom?
Replies: 122
Views: 5275

Re: Doom?

Oh my! After the recent epic master games (PoP and SCR) this is a whole new level of awesome! I have a pi zero Co pro emulator in my master, that should be enough right? As the files are massive, you'll need some sort of hard drive too (e.g. DC, BeebSCSI, GoSDC or Dominic's 1MHz bus->Pi interface)....
by RobC
Wed May 15, 2019 9:21 pm
Forum: hardware
Topic: A4 laptop - no display
Replies: 2
Views: 173

Re: A4 laptop - no display

What happens if you do F12 then press copy (or go into BASIC and do VDU 7)? Do you get the bell sound? If that's working, I'd definitely concentrate on getting it working with an external monitor. Have you tried configuring the sync setting? Good luck with this - A4s are a pain to work on and the FF...
by RobC
Wed May 15, 2019 1:10 pm
Forum: software: new games
Topic: Stunt Car Racer for BBC Master
Replies: 60
Views: 2977

Re: Stunt Car Racer for BBC Master

mr-macrisc wrote:
Wed May 15, 2019 7:35 am
We can but dream. Be even cooler if there was a nula version to make it proper colourful.
VideoNuLA would help with the horizontal scrolling too as you can do single pixel scrolling in all modes. (And even half pixel scrolling in mode 1 but you can't plot sprites on half pixels boundaries...)
by RobC
Mon May 06, 2019 4:51 pm
Forum: software: new games
Topic: Doom?
Replies: 122
Views: 5275

Re: Doom?

Did I already ask about the four palette X four colours at 240x256 nula option? If not, what do you think? I think you did but I must admit that I'd forgotten about it and I always struggle to come up with decent algorithms when thinking about how best to use the attribute modes. Any advice/suggest...
by RobC
Sat May 04, 2019 5:39 pm
Forum: software: new games
Topic: Doom?
Replies: 122
Views: 5275

Re: Doom?

Thanks to Marcus and Andy for giving an update. Just to add that the B/B+ version is using vertical rupture to give double buffering for the play area and a single buffered, full width status bar. The four colour/mode 1 dithering is pretty simple but you can choose the four colours out of the Beeb's...
by RobC
Fri May 03, 2019 2:48 pm
Forum: hardware
Topic: IDE interfaces - hardware details
Replies: 107
Views: 5221

Re: IDE interfaces - hardware details

So, i have a last question for @RobC: you said you use 4.39 and RO6... so, your IDE Podule works with softloaded RO6? I've not tried it. I do have an original ICS podule in my A310 but I haven't put a ZIDEFS ROM in it yet. I could try it if you want me to but it might take me a few days to get arou...
by RobC
Fri May 03, 2019 7:45 am
Forum: general
Topic: Bit of fun - One change only
Replies: 97
Views: 3073

Re: Bit of fun - One change only

The C64 also had analogue pins in its two joystick ports. Must have been in the VIC 20 too. I think the C64 uses the SID for ADC rather than using a dedicated ADC chip like the Beeb or Einstein. Looking through my Einsten hardware manual last night, it seems that its ADC is only 8-bit (as is the C6...
by RobC
Thu May 02, 2019 8:25 pm
Forum: general
Topic: Bit of fun - One change only
Replies: 97
Views: 3073

Re: Bit of fun - One change only

As far as I can remember, the BBC Micro was the only 8 bit machine with a true analogue port. As in it used a proper ADC chip. Pretty sure the Einstein has one too. ISTR an Einstein magazine article which says it has a better resolution than the Beeb's ADC. The 6845 itself does not care about the w...
by RobC
Thu May 02, 2019 10:12 am
Forum: general
Topic: DRAGON USER gripes about the Computer Literacy Programme.....
Replies: 52
Views: 1141

Re: DRAGON USER gripes about the Computer Literacy Programme.....

...maybe I lived in a bubble because back in the day I never owned or knew anyone that owned a Dragon. I don't even remember seeing it for sale in the local shops. I knew a few people with one when I was at school. A couple of my cousins had them too. However, that's probably not surprising given t...
by RobC
Wed May 01, 2019 9:19 pm
Forum: hardware
Topic: IDE interfaces - hardware details
Replies: 107
Views: 5221

Re: IDE interfaces - hardware details

I would guess that ZIDEFS is not 32bit clean, so the RISC OS 5 podule loader inhibits its initialization. Unfortunately, none of John's software is 32bit clean (ISTR it was a political thing), and no source code is available. Is it worth running the ZIDEFS module through !Armalyser to discover the ...
by RobC
Wed May 01, 2019 4:54 pm
Forum: general
Topic: DRAGON USER gripes about the Computer Literacy Programme.....
Replies: 52
Views: 1141

Re: DRAGON USER gripes about the Computer Literacy Programme.....

I don't know about CBM, but most home computers of the day used some variety of the Kansas City / CUTS tape format. Whilst in essence simply Frequency Modulation, the 1200 baud variant used by Acorn qualifies as a more sophisticated encoding scheme because a 'zero' bit corresponds to only a single ...
by RobC
Wed May 01, 2019 4:04 pm
Forum: upcoming and recent events & exhibitions
Topic: Wakefield RISC OS show 27/4/19
Replies: 128
Views: 4270

Re: Wakefield RISC OS show 27/4/19

I've just realised that there wasn't an issue of Archive available this year :( Usually look forward to reading through it the day after the show . . . Unfortunately, Jim Nagel was ill. He sent out an e-mail just before the show to say that he'd gone down with a bug but also said that the latest is...
by RobC
Wed May 01, 2019 3:33 pm
Forum: general
Topic: DRAGON USER gripes about the Computer Literacy Programme.....
Replies: 52
Views: 1141

Re: DRAGON USER gripes about the Computer Literacy Programme.....

The same reliability I came to expect with the proprietary CBM tape decks. (Amazing reliability with the CBM units, actually, when you feel how light and flimsy they seem, especially when you open one.) Didn't Commodore use some kind of weird scheme for encoding the data :?: Ah yes: http://www.zimm...
by RobC
Wed May 01, 2019 1:42 pm
Forum: hardware
Topic: IDE interfaces - hardware details
Replies: 107
Views: 5221

Re: IDE interfaces - hardware details

i have a different issue with my zidefs podule: all ok with Riscos 3.11 to 4.02, but when softloading the 5.23 Riscos, podule is listed but no zidefs (neither sidefs nor idefs) is found... i don't know if it's about my boot config.. anyone had same problem? I haven't tried this as I only use RO4.39...
by RobC
Wed May 01, 2019 11:55 am
Forum: general
Topic: DRAGON USER gripes about the Computer Literacy Programme.....
Replies: 52
Views: 1141

Re: DRAGON USER gripes about the Computer Literacy Programme.....

I must admit I looked at those and and scoffed, as I'd recognise so many as rebadged or repurposed regular mono cassette decks. Even the Acorn one. I always found the Acorn data recorder to be very reliable. In fact, I used to take mine into school when they had problems with certain tapes as it lo...
by RobC
Tue Apr 30, 2019 6:07 pm
Forum: general
Topic: DRAGON USER gripes about the Computer Literacy Programme.....
Replies: 52
Views: 1141

Re: DRAGON USER gripes about the Computer Literacy Programme.....

It doesn't even seem Spectrum-level but it was sold for twice the price. To be fair, the Dragon has a better keyboard and build quality than many contemporary machines. Also, the 6809 is often considered to be a "nice" CPU to program although the 1MHz version probably isn't going to perform as well...
by RobC
Tue Apr 30, 2019 3:10 pm
Forum: general
Topic: DRAGON USER gripes about the Computer Literacy Programme.....
Replies: 52
Views: 1141

Re: DRAGON USER gripes about the Computer Literacy Programme.....

danielj wrote:
Tue Apr 30, 2019 2:41 pm
They're basically a coco - the display is awful (al-la-atom), but the guts aren't too shabby with a 6809?
Yes - a 6809 (albeit running sub-1MHz). You can run things like FLEX and OS-9 on the 64K version.
by RobC
Mon Apr 29, 2019 1:58 pm
Forum: other vintage computer hardware, software and games
Topic: On this day - 25th anniversary of Commodore International bankruptcy
Replies: 1
Views: 190

Re: On this day - 25th anniversary of Commodore International bankruptcy

Andrew_Waite wrote:
Sun Apr 28, 2019 11:08 pm
Quite something to thing that was 25 years ago, today.
Indeed - how time flies!

On the subject of silver anniversaries, Acorn launched the original RiscPC just over 25 years ago on the 15th of April 1994.
by RobC
Mon Apr 29, 2019 11:19 am
Forum: for sale / freebies
Topic: VideoNuLA boards
Replies: 83
Views: 12792

Re: VideoNuLA boards

BBCwork123 wrote:
Mon Apr 29, 2019 8:06 am
Please PM me to arrange things.
PM sent.
by RobC
Sun Apr 28, 2019 8:05 pm
Forum: upcoming and recent events & exhibitions
Topic: Wakefield RISC OS show 27/4/19
Replies: 128
Views: 4270

Re: Wakefield RISC OS show 27/4/19

z0m8ied0g wrote:
Sun Apr 28, 2019 7:43 pm
Gutted to miss this, don't think I've missed one in the last 20 years but had a good excuse...

Leo Franklin Barriball was born 27th April at 2.16am so I was told that I had to attend that event instead :)
Congratulations - they are lots of work but completely worth it :D